Hydraulic cylinder welding stress relief device

Abstract

This utility model provides a hydraulic cylinder welding stress relief device, relating to the field of hydraulic cylinder welding technology. It includes a base plate, with a rotating mechanism located in the middle of the base plate. A placement plate is mounted on the top of the rotating mechanism. An ultrasonic generator is mounted on the other side of the top of the base plate. An ultrasonic impact gun is mounted on one end of the ultrasonic generator, and a mounting mechanism is provided on the outer side of the ultrasonic impact gun. By providing a mounting mechanism on the outer side of the ultrasonic impact gun, and utilizing the cooperation between the mounting mechanism's fixing frame, placement hole, fixing hole, limiting plate, positioning block, limiting hole, and limiting pin, the ultrasonic impact gun can be conveniently placed on the fixing frame. This makes storage of the ultrasonic impact gun more convenient and quick, thus preventing damage when not in use and improving the stress relief effect of the hydraulic cylinder, thereby greatly improving the practicality of the device in use.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder welding technology, and in particular to a stress relief device for hydraulic cylinder welding. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy, performing linear reciprocating motion (or oscillating motion). It has a simple structure and reliable operation. When used to achieve reciprocating motion, it eliminates the need for a speed reduction device, eliminates transmission backlash, and provides smooth movement. Therefore, it is widely used in the hydraulic systems of various machines. The output force of a hydraulic cylinder is directly proportional to the effective area of ​​the piston and the pressure difference between its two sides.

[0003] During the welding process of hydraulic cylinders, uneven heating and cooling at localized high temperatures can generate welding stress in the weld and surrounding areas. Therefore, a stress relief device is needed to eliminate this stress. However, existing stress relief devices mainly use ultrasonic equipment to eliminate welding stress. However, it is inconvenient to store the ultrasonic impact gun in a convenient manner, which can easily damage the gun head and affect the accuracy of the equipment, thus reducing the practicality of the device. Therefore, this utility model proposes a hydraulic cylinder welding stress relief device to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a hydraulic cylinder welding stress relief device, which solves the problem in the prior art where it is inconvenient to store ultrasonic impact guns conveniently, making the gun head of the ultrasonic impact gun easily damaged, affecting the accuracy of the equipment, and thus reducing the practicality of the device in use.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a hydraulic cylinder welding stress relief device, including a base plate, a rotating mechanism is provided at the middle position inside the base plate, a placement plate is installed at the top of the rotating mechanism, a positioning mechanism is provided above the placement plate, a box furnace is installed on one side of the top of the base plate, an ultrasonic generator is installed on the other side of the top of the base plate, an ultrasonic impact gun is installed at one end of the ultrasonic generator, and an installation mechanism is provided on the outside of the ultrasonic impact gun.

[0006] The installation mechanism includes a fixing frame, a placement hole, a fixing hole, a limiting plate, a positioning block, a limiting hole, and a limiting pin. The fixing frame is installed on the top of the base plate. The fixing frame has a placement hole inside. The ultrasonic impact gun is placed inside the placement hole. The fixing frame has a fixing hole inside. A limiting plate is installed at one end of the fixing frame. A positioning block is installed on the inner side of the limiting plate. One end of the positioning block extends into the fixing hole. A limiting hole is opened inside the positioning block. A limiting pin is provided inside the limiting hole.

[0007] A further improvement is that the cross-section of the fixing hole is larger than the cross-section of the positioning block, and the fixing hole and the positioning block form an engaging structure.

[0008] A further improvement is made in that: the positioning mechanism includes a side plate, a cylinder, a positioning plate, a guide hole, and a guide rod. The side plate is installed on both sides of the top of the placement plate. A cylinder is installed on one side of the side plate. One end of the cylinder extends to the inside of the side plate. A positioning plate is installed on one end of the cylinder. Guide holes are opened through both ends of the side plate. A guide rod is installed through the inside of the guide hole. One end of the guide rod is connected to one side of the positioning plate.

[0009] A further improvement is that the positioning plate has an arc-shaped design, and the two positioning plates are mutually compatible.

[0010] A further improvement is made in that: the rotating mechanism includes a servo motor, a worm gear, a worm wheel, a limiting groove, and a limiting block. The servo motor is installed at one end of the base plate, the worm gear is installed inside the base plate, the output end of the servo motor is connected to one end of the worm gear, a worm wheel meshes with one side of the worm gear, the top end of the worm wheel is connected to the bottom end of the placement plate, the limiting groove is opened inside the base plate, a limiting block is set inside the limiting groove, and the top end of the limiting block is connected to the bottom end of the placement plate.

[0011] A further improvement is that the cross-section of the limiting groove is larger than the cross-section of the limiting block, and the limiting groove and the limiting block form a sliding structure.

[0012] The beneficial effects of this utility model are as follows: By providing a mounting mechanism on the outside of the ultrasonic impact gun, and utilizing the cooperation between the mounting mechanism's fixing frame, placement hole, fixing hole, limiting plate, positioning block, limiting hole, and limiting pin, the ultrasonic impact gun can be conveniently placed on the fixing frame, making storage more convenient and quick. This also reduces the likelihood of damage when the ultrasonic impact gun is not in use, resulting in better stress relief for the hydraulic cylinder and significantly improving the practicality of the device. Furthermore, by providing a rotating mechanism inside the base plate, and utilizing the cooperation between the rotating mechanism's servo motor, worm gear, worm wheel, limiting groove, and limiting block, the hydraulic cylinder can be rotated to relieve welding stress, resulting in higher efficiency in stress relief and significantly improving the device's working efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of the installation mechanism of this utility model;

[0015] Figure 3 This is a schematic diagram of the overall structure of the positioning mechanism of this utility model;

[0016] Figure 4 This is a schematic diagram of the overall structure of the rotating mechanism of this utility model.

[0017] The components are: 1. Base plate; 2. Placement plate; 3. Box furnace; 4. Ultrasonic generator; 5. Ultrasonic impact gun; 6. Fixing frame; 7. Placement hole; 8. Fixing hole; 9. Limiting plate; 10. Positioning block; 11. Limiting hole; 12. Limiting pin; 13. Side plate; 14. Cylinder; 15. Positioning plate; 16. Guide hole; 17. Guide rod; 18. Servo motor; 19. Worm gear; 20. Worm wheel; 21. Limiting groove; 22. Limiting block. Detailed Implementation

[0018] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0019] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a hydraulic cylinder welding stress relief device, including a base plate 1. A rotating mechanism is provided at the middle position inside the base plate 1. A placement plate 2 is installed at the top of the rotating mechanism. A positioning mechanism is provided above the placement plate 2. A box furnace 3 is installed on one side of the top of the base plate 1. An ultrasonic generator 4 is installed on the other side of the top of the base plate 1. An ultrasonic impact gun 5 is installed at one end of the ultrasonic generator 4. An installation mechanism is provided on the outside of the ultrasonic impact gun 5.

[0020] The installation mechanism includes a fixing frame 6, a placement hole 7, a fixing hole 8, a limiting plate 9, a positioning block 10, a limiting hole 11, and a limiting pin 12. The fixing frame 6 is installed on the top of the base plate 1. The fixing frame 6 has a placement hole 7 inside, and the ultrasonic impact gun 5 is disposed inside the placement hole 7. The fixing frame 6 has a fixing hole 8 inside, and a limiting plate 9 is installed at one end of the fixing frame 6. A positioning block 10 is installed on the inner side of the limiting plate 9, and one end of the positioning block 10 extends into the fixing hole 8. A limiting hole 11 is opened inside the positioning block 10, and a limiting pin 12 is disposed inside the limiting hole 11. The cross-section of the fixing hole 8 is larger than the cross-section of the positioning block 10, and the fixing hole 8 and the positioning block 10 form a locking structure. In use, the limiting pin 12 is inserted from the limiting hole. Remove the internal parts of 11. The positioning block 10 can be removed from the inside of the fixing hole 8. Remove the limiting plate 9. At this time, the ultrasonic impact gun 5 can be removed from the inside of the fixing frame 6. Start the ultrasonic generator 4 and use the ultrasonic impact gun 5 to eliminate welding stress at the welded parts of the hydraulic cylinder. After the ultrasonic impact gun 5 is used, put it into the placement hole 7. Then put the positioning block 10 into the inside of the fixing hole 8. Finally, insert the limiting pin 12 into the inside of the limiting hole 11 to complete the convenient storage of the ultrasonic impact gun 5. The ultrasonic impact gun 5 can be conveniently placed on the fixing frame 6, making it more convenient and faster to store. Therefore, the ultrasonic impact gun 5 is not easily damaged when not in use, and the welding stress elimination effect of the hydraulic cylinder is better, thereby greatly improving the practicality of the device in use.

[0021] The positioning mechanism includes a side plate 13, a cylinder 14, a positioning plate 15, a guide hole 16, and a guide rod 17. The side plate 13 is installed on both sides of the top of the placement plate 2. A cylinder 14 is installed on one side of the side plate 13, with one end of the cylinder 14 extending to the inside of the side plate 13. A positioning plate 15 is installed on one end of the cylinder 14. Guide holes 16 are provided through both ends of the side plate 13. A guide rod 17 is provided through the inside of the guide holes 16. One end of the guide rod 17 is connected to one side of the positioning plate 15. The positioning plate 15 has an arc-shaped design, and the two positioning plates 15 are mutually compatible. In use, the hydraulic cylinder is taken out from the inside of the box furnace 3 and welded. After welding, the hydraulic cylinder is placed above the placement plate 2, and then the cylinder 14 is started. Under the limit of the guide hole 16 and the guide rod 17, the cylinder 14 drives the positioning plate 15 to move, thereby using the two positioning plates 15 to position the hydraulic cylinder, making the hydraulic cylinder more stable during processing.

[0022] The rotating mechanism includes a servo motor 18, a worm gear 19, a worm wheel 20, a limiting groove 21, and a limiting block 22. The servo motor 18 is mounted on one end of the base plate 1, and the worm gear 19 is mounted inside the base plate 1. The output end of the servo motor 18 is connected to one end of the worm gear 19. The worm wheel 20 is meshed on one side of the worm gear 19, and the top end of the worm wheel 20 is connected to the bottom end of the placement plate 2. The limiting groove 21 is opened inside the base plate 1, and the limiting block 22 is provided inside the limiting groove 21. The top end of the limiting block 22 is connected to the bottom end of the placement plate 2. In use, the servo motor 18 is started to drive the worm gear 19 to rotate. Since the worm gear 19 and the worm wheel 20 are meshed with each other, under the limiting of the limiting groove 21 and the limiting block 22, the worm wheel 20 drives the placement plate 2 to rotate, thereby driving the hydraulic cylinder to rotate. This makes the hydraulic cylinder more efficient in eliminating welding stress, thus greatly improving the working efficiency of the device during use.

[0023] The cross-section of the limiting groove 21 is larger than the cross-section of the limiting block 22. The limiting groove 21 and the limiting block 22 form a sliding structure. In use, the mutual cooperation between the limiting groove 21 and the limiting block 22 can limit the placement plate 2 when it rotates, making the placement plate 2 more stable when it moves.

[0024] Working principle: First, the operator places the welding part of the hydraulic cylinder inside the box furnace 3 for preheating, which also eliminates stress generated during welding. After preheating, the hydraulic cylinder is removed from the box furnace 3 for welding. After welding, the hydraulic cylinder is placed above the placement plate 2. Then, the cylinder 14 is activated. Under the limit of the guide hole 16 and the guide rod 17, the cylinder 14 drives the positioning plate 15 to move, thereby positioning the hydraulic cylinder using the two positioning plates 15. At this time, the limit pin 12 is removed from the limit hole 11, and the positioning block 10 can be removed from the fixing hole 8. The limit plate 9 is then removed, and the ultrasonic impact gun can be used. 5. Take it out from the inside of the fixed frame 6, start the ultrasonic generator 4 and use the ultrasonic impact gun 5 to eliminate welding stress at the welded part of the hydraulic cylinder. At this time, start the servo motor 18 to drive the worm 19 to rotate. Since the worm 19 and the worm wheel 20 are meshed with each other, under the limit of the limit groove 21 and the limit block 22, the worm wheel 20 drives the placement plate 2 to rotate, which in turn drives the hydraulic cylinder to rotate, making the hydraulic cylinder more efficient in eliminating welding stress. After the ultrasonic impact gun 5 is used, put it into the placement hole 7, then put the positioning block 10 into the fixed hole 8, and finally insert the limit pin 12 into the limit hole 11 to complete the convenient storage of the ultrasonic impact gun 5.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hydraulic cylinder welding stress relief device, comprising a base plate (1), characterized in that: A rotating mechanism is provided in the middle of the bottom plate (1). A placement plate (2) is installed at the top of the rotating mechanism. A positioning mechanism is provided above the placement plate (2). A box furnace (3) is installed on one side of the top of the bottom plate (1). An ultrasonic generator (4) is installed on the other side of the top of the bottom plate (1). An ultrasonic impact gun (5) is installed at one end of the ultrasonic generator (4). An installation mechanism is provided on the outside of the ultrasonic impact gun (5). The installation mechanism includes a fixing frame (6), a placement hole (7), a fixing hole (8), a limiting plate (9), a positioning block (10), a limiting hole (11), and a limiting pin (12). The fixing frame (6) is installed on the top of the base plate (1). The fixing frame (6) has a placement hole (7) inside. The ultrasonic impact gun (5) is placed inside the placement hole (7). The fixing frame (6) has a fixing hole (8) inside. A limiting plate (9) is installed at one end of the fixing frame (6). A positioning block (10) is installed on the inner side of the limiting plate (9). One end of the positioning block (10) extends into the interior of the fixing hole (8). A limiting hole (11) is opened inside the positioning block (10). A limiting pin (12) is provided inside the limiting hole (11).

2. The hydraulic cylinder welding stress relief device according to claim 1, characterized in that: The cross-section of the fixing hole (8) is larger than the cross-section of the positioning block (10), and the fixing hole (8) and the positioning block (10) form a locking structure.

3. The hydraulic cylinder welding stress relief device according to claim 2, characterized in that: The positioning mechanism includes a side plate (13), a cylinder (14), a positioning plate (15), a guide hole (16), and a guide rod (17). The side plate (13) is installed on both sides of the top of the placement plate (2). A cylinder (14) is installed on one side of the side plate (13). One end of the cylinder (14) extends to the inside of the side plate (13). A positioning plate (15) is installed on one end of the cylinder (14). Guide holes (16) are opened through both ends of the side plate (13). A guide rod (17) is installed through the inside of the guide hole (16). One end of the guide rod (17) is connected to one side of the positioning plate (15).

4. The hydraulic cylinder welding stress relief device according to claim 3, characterized in that: The positioning plate (15) is arc-shaped, and the two positioning plates (15) are adapted to each other.

5. The hydraulic cylinder welding stress relief device according to claim 1, characterized in that: The rotating mechanism includes a servo motor (18), a worm (19), a worm wheel (20), a limiting groove (21), and a limiting block (22). The servo motor (18) is installed at one end of the base plate (1), and the worm (19) is installed inside the base plate (1). The output end of the servo motor (18) is connected to one end of the worm (19). The worm wheel (20) is meshed on one side of the worm (19). The top end of the worm wheel (20) is connected to the bottom end of the placement plate (2). The limiting groove (21) is opened inside the base plate (1), and a limiting block (22) is provided inside the limiting groove (21). The top end of the limiting block (22) is connected to the bottom end of the placement plate (2).

6. The hydraulic cylinder welding stress relief device according to claim 5, characterized in that: The cross-section of the limiting groove (21) is larger than the cross-section of the limiting block (22), and the limiting groove (21) and the limiting block (22) form a sliding structure.

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